Midnightblue, I think you've had very bad luck with your tranny for some reason. Perhaps the replacement parts or the people rebuilding it? I know the most vulnerable gear is third in a 3650, but I've given mine a fair amount of abuse with no problems. There are after market suppliers out there that allow you to use the same case with fortified internals, different gear ratios, etc. My theory is if OEM breaks, do not replace with OEM again. But I know the cost factor for a transmission can be bad for the budget. When my axle broke @ 8000 miles on the clock, I seized that opportunity to re-do the differential, axles and ring and pinion with something that would be bulletproof, at least for my intended use.
